The WinFast GTX 660 Hurricane II features reference clock speeds of 980 MHz core, 1033 MHz GPU Boost, and 6.00 GHz memory (GDDR5-effective). It features 2 GB of memory across a 192-bit wide memory interface. Based on the 28 nm GK106 silicon, the GeForce GTX 660 packs 960 CUDA cores. The card draws power from a single 6-pin power connector, display outputs include two DVI, and one each of HDMI and DisplayPort.